3
3.0

Jun 30, 2018
06/18

by
Michael E. Beverland; Gorjan Alagic; Michael J. Martin; Andrew P. Koller; Ana M. Rey; Alexey V. Gorshkov

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We show that $n$ thermal fermionic alkaline-earth atoms in a flat-bottom trap allow one to robustly implement a spin model displaying two symmetries: the $S_n$ symmetry that permutes atoms occupying different vibrational levels of the trap and the SU($N$) symmetry associated with $N$ nuclear spin states. The high symmetry makes the model exactly solvable, which, in turn, enables the analytic study of dynamical processes such as spin diffusion in this SU($N$) system. We also show how to use this...

Topics: Physics, Quantum Physics, Strongly Correlated Electrons, Quantum Gases, Atomic Physics, Condensed...

Source: http://arxiv.org/abs/1409.3234

2
2.0

Jun 30, 2018
06/18

by
Michael E. Beverland; Oliver Buerschaper; Robert Koenig; Fernando Pastawski; John Preskill; Sumit Sijher

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We study restrictions on locality-preserving unitary logical gates for topological quantum codes in two spatial dimensions. A locality-preserving operation is one which maps local operators to local operators --- for example, a constant-depth quantum circuit of geometrically local gates, or evolution for a constant time governed by a geometrically-local bounded-strength Hamiltonian. Locality-preserving logical gates of topological codes are intrinsically fault tolerant because spatially...

Topics: Quantum Physics, Strongly Correlated Electrons, Condensed Matter

Source: http://arxiv.org/abs/1409.3898

2
2.0

Jun 29, 2018
06/18

by
Michael E. Beverland; Jeongwan Haah; Gorjan Alagic; Gretchen K. Campbell; Ana Maria Rey; Alexey V. Gorshkov

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We show that Ramsey spectroscopy of fermionic alkaline-earth atoms in a square-well trap provides an efficient and accurate estimate for the eigenspectrum of a density matrix whose $n$ copies are stored in the nuclear spins of $n$ such atoms. This spectrum estimation is enabled by the high symmetry of the interaction Hamiltonian, dictated, in turn, by the decoupling of the nuclear spin from the electrons and by the shape of the square-well trap. Practical performance of this procedure and its...

Topic: Quantum Physics

Source: http://arxiv.org/abs/1608.02045

2
2.0

Jun 30, 2018
06/18

by
Aleksander Kubica; Michael E. Beverland

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We provide a simplified, yet rigorous presentation of the ideas from Bomb\'{i}n's paper "Gauge Color Codes" [arXiv:1311.0879v3]. Our presentation is self-contained, and assumes only basic concepts from quantum error correction. We provide an explicit construction of a family of color codes in arbitrary dimensions and describe some of their crucial properties. Within this framework, we explicitly show how to transversally implement the generalized phase gate $R_n=\text{diag}(1,e^{2\pi...

Topic: Quantum Physics

Source: http://arxiv.org/abs/1410.0069

259
259

Oct 26, 2014
10/14

by
Beverland, Adriaan

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8°. [20], 157 [i.e. 167], [11] p

Topics: De peccato originali kat' exocheÌ€n sic nuncupato, dissertatio, Erfzonde

96
96

Sep 19, 2013
09/13

by
Arnold O. Benz; Christian Monstein; Michael Beverland; Hansueli Meyer; Bruno Stuber

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A new multichannel spectrometer, Phoenix-3, is in operation having capabilities to observe solar flare radio emissions in the 0.1 - 5 GHz range at an unprecedented spectral resolution of 61.0 kHz with high sensitivity. The present setup for routine observations allows measuring circular polarization, but requires a data compression to 4096 frequency channels in the 1 - 5 GHz range and to a temporal resolution of 200 ms. First results are presented by means of a well observed event that included...

Source: http://arxiv.org/abs/0909.4137v1

37
37

Sep 23, 2013
09/13

by
M. E. Beverland; L. J. Daniels; D. J. Durian

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We report on quasi-two-dimensional granular systems in which either one or two large balls is fluidized by an upflow of air in the presence of a background of several hundred smaller beads. A single large ball is observed to propel ballistically in nearly circular orbits, in direct contrast to the Brownian behavior of a large ball fluidized in the absence of this background. Further, the large ball motion satisfies a Langevin equation with an additional speed-dependent force acting in the...

Source: http://arxiv.org/abs/1012.0438v1

Not in Wing

Topic: Sin, Original

147
147

Oct 24, 2014
10/14

by
Beverland, Adriaan

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8°. [12], 223, [4] p

Topics: De stolatæ virginitatis jure lucubratio academica, MaagdelÄ³kheid

172
172

Oct 26, 2014
10/14

by
Beverland, Adriaan

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8°. 106 p

Topic: De fornicatione cavenda admonitio Detestatio nefandissimi sceleris onanitici gravissima

733
733

Aug 12, 2009
08/09

by
Beverland, Adriaan, 1654?-1712

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A translation by J.F. Bernard of Beverland's Peccatum originale

Source: bplsc

169
169

Oct 27, 2014
10/14

by
Beverland, Adriaan

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8°. [12], 223, [4] p

Topics: De stolatæ virginitatis jure lucubratio academica, MaagdelÄ³kheid